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! Note ? Please read rating and ! CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
? This catalog has only typical speci?cations. Therefore, please approve our product speci?cations or transact the approval sheet for product speci?cations before ordering.
CERAFIL r 10.7MHz Related Data on Lead Type
c Temperature Characteristics
P50E.pdf
Sep.19,2012
SFELF10M7GA00-B0
SFELF10M7HA00-B0
+40
+20
0
–20
Center frequency
+40
+20
0
–20
Center frequency
–40
–20
0
+20
+40
+60
+80
–40
–20
0
+20 +40
+60
+80
+2
+1
Insertion loss
Temperature (°C)
+2
+1
Insertion loss
Temperature (°C)
0
–1
0
–1
–2
–20
0
+20
+40
+60
+80
–2
–20
0
+20 +40
+60
+80
+40
+20
3dB Bandwidth
Temperature (°C)
+40
+20
3dB Bandwidth
Temperature (°C)
0
–20
0
–20
–40
–20
0
+20
+40
+60
+80
–40
–20
0
+20 +40
+60
+80
Temperature (°C)
c Matching Conditions
1. When using ceramic ?lters, it is most important to
match the input/output load to impedance 330 ohm
(SFELF10M7DF00-B0 is 470 ohm).
Waveform symmetry is damaged when reactance is
added to the input/output load.
2. Two ceramic ?lters directly connected can be used
for high selectivity. For reducing waveform
variation, it is recommended to input a buffer AMP
between ceramic ?lters.
c Loaded Resistance and Waveform (Rg+R1=330 ohm)
SFELF10M7GA00-B0
Temperature (°C)
3. The SFELF10M7 series are of input/output symmetric
structure so that in theory there is no input/output
directionality. Actual circuits may use different
input/output loading conditions (for example,
mismatched impedance) or capacitance load. In such
cases, the waveform will be a little changed by the
direction of the input/output of the ceramic ?lters.
R 2 =220 Ω
R 2 =330 Ω
0
1
2
3
4
5
6
7
10.5 10.6 10.7 10.8 10.9
Frequency (MHz)
1.2
1.0
0.8
0.6
0.4
0.2
0
0
1
2
3
4
5
6
7
10.5 10.6 10.7 10.8 10.9
Frequency (MHz)
1.2
1.0
0.8
0.6
0.4
0.2
0
0
R 2 =560 Ω
1.2
0
R 2 =1k Ω
1.2
1
2
3
4
5
6
7
10.5 10.6 10.7 10.8 10.9
Frequency (MHz)
1.0
0.8
0.6
0.4
0.2
0
1
2
3
4
5
6
7
10.5 10.6 10.7 10.8 10.9
Frequency (MHz)
1.0
0.8
0.6
0.4
0.2
0
c Loaded Capacitance and Waveform (Rg+R1=R2=330 ohm)
SFELF10M7HA00-B0
C=10pF
C=33pF
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
10.5 10.6 10.7 10.8 10.9
Frequency (MHz)
C=56pF
10.5 10.6 10.7 10.8 10.9
Frequency (MHz)
1.2
1.0
0.8
0.6
0.4
0.2
0
1.2
1.0
0.8
0.6
0.4
0.2
0
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
10.5 10.6 10.7 10.8 10.9
Frequency (MHz)
C=82pF
10.5 10.6 10.7 10.8 10.9
Frequency (MHz)
1.2
1.0
0.8
0.6
0.4
0.2
0
1.2
1.0
0.8
0.6
0.4
0.2
0
30
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